flickrblendr.php

<?php 
/*
* Plugin Name: flickrblendr
* Description: custom post a flickr slideshow two photos at a time blended
* Version: 0.1.1
* Author: John Johnston
* Author URI: http://johnjohnston.info
* License:     GPL2
* License URI: https://www.gnu.org/licenses/gpl-2.0.html
*/

function add_flickrblendr_scripts_basic()
{
    // wp_register_script Registers a script file in WordPress to be linked to a page later using the wp_enqueue_script() function, which safely handles the script dependencies.
    wp_register_script('flickrblendr', plugins_url('assets/flickrblendr.js', __FILE__), array('json2', 'jquery'), false, true);
    wp_register_style('flickrblendr', plugins_url('assets/flickrblendr.css', __FILE__));
}

add_action('init', 'add_flickrblendr_scripts_basic');

/* Settings  */

add_action('admin_init', 'flickrblendr_plugin_settings');

function flickrblendr_plugin_settings()
{
    register_setting('flickrblendr-settings-group', 'flickrblendr_apikey');
    register_setting('flickrblendr-settings-group', 'flickrblendr_showmode');
}

 function flickrblendr_plugin_menu()
 {
     add_options_page('FlickrBlendr Options', 'FlickrBlendr', 'manage_options', __FILE__, 'flickrblendr_plugin_options');
 }

function flickrblendr_plugin_options()
{
    if (!current_user_can('manage_options')) {
        wp_die(__('You do not have sufficient permissions to access this page.'));
    }

    ?>
	<div class="wrap">
	<h2>FlickrBlendr Settings</h2>
	<p>You can create/find your api key at <a href="https://www.flickr.com/services/api/keys/">Flickr API Keys</a>. You will need to sign in.</p>	 
 	<form method="post" action="options.php">
	<?php settings_fields('flickrblendr-settings-group');
    ?>
	<?php do_settings_sections('flickrblendr-settings-group');
    ?>
	<table class="form-table">	
	<tr valign="top">
	<th scope="row">Flickr API Key</th>
	<td>
<input type="text" name="flickrblendr_apikey" value="<?php echo esc_attr(get_option('flickrblendr_apikey'));
    ?>" />
</td>
	</tr>
	<tr>
	<td>Use mode popup: <input name="flickrblendr_showmode" type="checkbox" value="1" <?php checked('1', get_option('flickrblendr_showmode'));
    ?> />
	<em>This dosen't work yet, the popup is always there.</em>
	</td></tr>
	</table> 

	<?php submit_button();
    ?>
 
	</form>
	</div>
	<?php 
    echo '</div>';
}
add_action('admin_menu', 'flickrblendr_plugin_menu');

    /*
        Custom post type
    */

    function my_custom_post_flickrblendr()
    {
        $labels = array(
            'name' => _x('FlickrBlendr', 'post type general name'),
            'singular_name' => _x('FlickrBlendr', 'post type singular name'),
            'add_new' => _x('Add New', 'FlickrBlendr'),
            'add_new_item' => __('Add New FlickrBlendr'),
            'edit_item' => __('Edit FlickrBlendr'),
            'new_item' => __('New FlickrBlendr'),
            'all_items' => __('All FlickrBlendrs'),
            'view_item' => __('View FlickrBlendr'),
            'search_items' => __('Search FlickrBlendr'),
            'not_found' => __('No FlickrBlendrs found'),
            'not_found_in_trash' => __('No FlickrBlendrs found in the Trash'),
            'parent_item_colon' => '',
            'menu_name' => 'FlickrBlendrs',
        );
        $args = array(
            'labels' => $labels,
            'description' => 'Holds FlickrBlendrs and show specific data',
            'public' => true,
            'menu_position' => 5,
            'hierarchical' => true,
            'supports' => array('title', 'editor', 'thumbnail', 'custom-fields'),
            'has_archive' => false,
        );
        register_post_type('flickrblendr', $args);
    }

    add_action('init', 'my_custom_post_flickrblendr');

/*
    Metaboxes
*/

    add_action('add_meta_boxes', 'flickrblendr_meta_box_add');

function flickrblendr_meta_box_add()
{
    add_meta_box('flickrblendr_meta_box_search', 'Flickr Search String', 'flickrblendr_meta_box_cb', 'flickrblendr', 'normal', 'high');
}

    function flickrblendr_meta_box_cb()
    {
        global $post;

        $values = get_post_custom($post->ID);
        $text = isset($values['flickrblendr_search']) ? $values['flickrblendr_search'] : '';

        wp_nonce_field('flickrblendr_search_nonce', 'flickrblendr_search_nonce');
        ?>
	<p>
	    <label for="flickrblendr_search">Flickr Search</label>
	    <input type="text" name="flickrblendr_search" id="flickrblendr_search" value="<?php echo $text;
        ?>" /> Leave empty if you don't want to search particular images.
	        </p>
	    <?php 
    }

    add_action('save_post', 'flickrblendr_meta_box_save');
    function flickrblendr_meta_box_save($post_id)
    {
        global $meta_box;
        // Bail if we're doing an auto save
        if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
            return;
        }

        // if our nonce isn't there, or we can't verify it, bail
        if (!isset($_POST['flickrblendr_search_nonce']) || !wp_verify_nonce($_POST['flickrblendr_search_nonce'], 'flickrblendr_search_nonce')) {
            return;
        }

        // if our current user can't edit this post, bail
        if (!current_user_can('edit_post')) {
            return;
        }

        if (isset($_POST['my_meta_box_text'])) {
            update_post_meta($post_id, 'flickrblendr_search', $_POST['flickrblendr_search']);
        }
    }

/*
    end metaboxes
*/

    add_filter('the_content', 'flickrblendr_before_content');

     function flickrblendr_before_content($content)
     {
         if (is_singular('flickrblendr')) {
             $flickrblendr = flickrblendr_content();
             $content = $flickrblendr.$content;
         }

         return $content;
     }

function flickrblendrpage_enqueue_scripts()
{
    if (is_singular('flickrblendr')) {
        //enqueue here so only add script & styles when needed
        //echo esc_attr( get_option('flickrblendr_apikey') )
        $flickrapikey = get_option('flickrblendr_apikey');

        $flickrfeed = 'https://api.flickr.com/services/rest/?method=flickr.photos.search&api_key='.$flickrapikey.'&license=7%2C8%2C2%2C4%2C5&sort=interestingness-desc&extras=url_c%2Clicense%2Cowner_name&per_page=500&format=json';

        wp_enqueue_script('flickrblendr');
        wp_enqueue_script('flickrfeed', $flickrfeed, array('json2', 'jquery', 'flickrblendr'), false, true);
        wp_enqueue_style('flickrblendr');
    }
}

add_action('wp_enqueue_scripts', 'flickrblendrpage_enqueue_scripts');

    function flickrblendr_content()
    {
        $flickrblendrsearch = 'calm';
        $flickrblendrurl = plugin_dir_url(__FILE__);

        $r = '<div id="flickrblendrholder">
	<div id="flickrblendr"><div id="controlwrap"><div id="info">i</div><div id="controls">
		<div id="expand" onclick="fullscreen();">
		
			<img src="'.$flickrblendrurl.'assets/fullscreen.png"></div>
			Blend Mode: <select name="mode" id="mode"  onchange="swapmode();return true;" size="1">
				<option value="multiply" >multiply</option>
				<option value="screen">screen</option>
				<option value="overlay">overlay</option>
				<option value="darken">darken</option>
				<option value="lighten">lighten</option>
				<option value="color-dodge">color-dodge</option>
				<option value="color-burn">color-burn</option>
				<option value="hard-light">hard-light</option>
				<option value="soft-light">soft-light</option>
				<option value="difference">difference</option>
				<option value="exclusion" selected>exclusion</option>
				<option value="hue">hue</option>
				<option value="saturation">saturation</option>
				<option value="color">color</option>
				<option value="luminosity">luminosity</option>		
			</select>    </div></div>

		<div id="pic" data-flickrblendr="'.$flickrblendrsearch.'" class="flickrblendrfeed"  ><p id="licenses" class="info"></p><img src="'.$flickrblendrurl.'assets/Ajax-loader.gif" id="flickrblenderloader""></div>
		</div></div>';

        return $r;
    }

    function flickrblendr_activate()
    {
        // register taxonomies/post types here

        my_custom_post_flickrblendr();
        flush_rewrite_rules();
    }

    register_activation_hook(__FILE__, 'flickrblendr_activate');

    function flickrblendr_deactivate()
    {
        flush_rewrite_rules();
    }
    register_deactivation_hook(__FILE__, 'flickrblendr_deactivate');

?>